* {
    margin: 0;
}

/*#aa {*/
/*    background-color: blueviolet;*/
/*}*/
/*!* id选择器*!*/
/*#ab {*/
/*    background-color: cornflowerblue;*/
/*}*/
/*!* 类选择器*!*/
.aa {
    background-color: aquamarine;

}

/*!* 元素选择器*!*/
/*div{*/
/*    background-color: red;*/
/*}*/
/*!* 属性选择器*!*/
/*div[aa=aa]{*/
/*    background-color: blue;*/
/*}*/
.abc {
    /*background-color: blue;*/
    /*display: flex;*/
    /*flex-direction: column-reverse;*/
    /*display: flex;*/
    /*flex-wrap: wrap;*/
    /*min-width: 1000px;*/
    /*justify-content: space-between;*/
    /*justify-content: space-around;*/
    /*display: flex;*/
    /*align-items: flex-end;*/
    /*align-items: center;*/
    /*align-items: baseline;*/
    /*justify-content: center;*/
}

.a {
    width: 50px;
    background-color: red;
    height: 100px;
}

.b {
    width: 70px;
    background-color: blueviolet;
    height: 200px;


    /* 四个参数 分别对应和其他div的距离  上右下左*/
    /*margin: 5px 30px 20px 10px;*/
    margin: 5px 0 0 0;
    /*margin-top: 5px;*/
    /*margin-left: 10px;*/
    /*margin-bottom: 20px;*/
    /*margin-right: 30px;*/


    /*内边距：上右下左  边框和内容之间的距离*/
    padding: 20px 10px 30px 50px;

    /*padding-top: 20px;*/
    /*padding-right: 10px;*/
    /*padding-bottom: 30px;*/
    /*padding-left: 50px;*/


}

.c {
    width: 80px;
    background-color: aquamarine;
    height: 50px;
}

.bb {
    /*color: red;*/
    /*color: #2972e0;*/
    /*color: rgb(41, 114, 224);*/
    color: rgba(41, 114, 224, 0.5);
    /*字体设置*/
    font-family: 楷体;
    /*字体大小*/
    font-size: 40px;
    /*background-color: red;*/
    /*div边框 ：边框大小  边框形状  边框颜色*/
    border: 1px solid red;
    width: 200px;
    /*    以后涉及到文字的时候，首先要考虑是否溢出*/
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.single-over {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.many-over-5 {
    /*width: 200px;*/

    display: -webkit-box;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    -webkit-line-clamp: 5;
    overflow: hidden;

}

.many-over-2 {
    /*width: 200px;*/

    display: -webkit-box;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2;
    overflow: hidden;

}

.many-over-3 {
    /*width: 200px;*/

    display: -webkit-box;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    -webkit-line-clamp: 3;
    overflow: hidden;

}

.width-300 {
    width: 300px;
}

.width-200 {
    width: 200px;
}

.width-500 {
    width: 500px;
}

.border-blue {
    border: 1px solid blue;
}

.border-red {
    border: 10px solid #d9e016;
}